JP4778673B2 - Method for producing fertilizer or soil conditioner - Google Patents

Description

    Fertilizers necessary for plant cultivation and cultivation, especially organic fertilizers from livestock excreta, build a processing industry, a transportation industry and a building to handle livestock excreta discharged from livestock breeding Directly and indirectly on fertilizers, such as agriculture, general citizens, etc., mainly on the side that uses it in the construction civil engineering industry, equipment machinery related industries, production machinery, packaging materials, chemical fertilizers, sales organizations and other technical fields Related to all technical fields that will be involved in

(point of view)
Japan's economic situation has been in recession for the past few years, and most of the industrial products have remained pushed by cheap imports from neighboring underdeveloped countries. Although the competitiveness of the products has been steadily disappearing, we cannot find a clue to escape from the recession, but the agricultural market has gradually begun to be released as part of the deregulation, and some agricultural products have already been released. As a result, the external pressure on domestic agricultural products as well as the current industrial products has gradually increased, and it is a desperate situation for the liberalization of domestic agricultural products. Efforts to establish agricultural technologies that can sufficiently compete with cheap and abundant agricultural products and produce unique and efficient agricultural products are indispensable.

    As one of them, the evaluation of harmful foods has become extremely strict due to the raising of awareness about health management on the consumer side, and crops that depend on chemical fertilizers and pesticides for increasing production as before have been avoided, and as much as possible Compost, which has become a major player in production in the era when there has been an increasing tendency to purchase agricultural products produced by farming methods, and there has been great expectations for organic farming production. Agricultural products produced using organic fertilizers and soil amendments represented by are disadvantageous in the price range, but paying attention to the fact that consumption has increased due to purchase incentives. There is a movement to try to make safe agricultural products.

    In Tohoku and Hokkaido areas where livestock farming is prosperous, if it becomes possible to produce organic fertilizers and soil amendments using live droppings such as livestock, it is possible to plant safe and distinctive agricultural products in response to such movements. Many farming farmers with weak management bases are able to produce livestock and other livestock excrement treatment facilities as well as helping to revitalize production farmers by enabling the production of agricultural products that are widespread and able to compete with imported agricultural products. Therefore, without investing a great deal of expenses, it will lead to effective use and, in some cases, will open the way to return to profits and stabilize management, and above all, it will be able to eliminate the harmful effects of causing live feces pollution Therefore, it has been desired to reuse raw feces such as livestock for organic fertilizer and soil conditioner.

(Conventional technology)
However, although it takes a lot of time and effort, as in the case of compost, the one that is simply fermented with livestock feces mixed with organic fibers such as straw and pasture is accompanied by a strong odor. Even if it is effective for the production of temporary agricultural products, it is not only necessary to be avoided as a material that is extremely poorly handled from the work, but above all, it causes inconvenience to neighboring residents, and in some cases Since it must also be assumed that it will be a pollution problem, the inventors of the present application are working on the realization of a soil improvement material by livestock excreta that makes it possible to deal with these problems, and a manufacturing method therefor. The one that has already been expected is completed as an invention of Japanese Patent Laid-Open No. 2000-185888 “Fertilizer or soil improvement material and method for producing the same”, and greatly contributes to the production of organically grown agricultural products. Together are temple, from livestock farmers been actively welcomed as a means for solving the problems of livestock excreta treatment, it has been gradually dissemination.

(1) Japanese Unexamined Patent Publication No. 2000-185988

(Awareness of problems)
The present invention relates to the preceding invention which has been completed with the task of processing and utilizing livestock excreta, particularly raw pig excrement and raw cow excrement having a high water content, and the processing is troublesome due to the high water content. As well as improving the handling of raw pig manure, raw cattle manure, etc., strengthening the ingredients of organic fertilizers or soil amendments, it is possible to cope with the problem of chicken manure disposal, which is also one of the livestock excreta. It has an awareness that it will be useful for management.

(Object of invention)
Based on the above recognition, the present applicant and the inventor are not limited to livestock excreta, particularly effective materials that enable efficient treatment while being effective organic materials as fertilizers and soil improvers. Use raw pig dung, raw cow dung, etc., which have a lot of moisture and are difficult to process, and chicken dung ash for adjusting the water content and replenishing ingredients, so that it is almost odorless and easy to handle. At the same time, in order to be able to smoothly handle livestock excrement, and to contribute to pollution control by them, we started its development and research quickly, trial and error over a long period of time, and many prototypes, As a result of repeating the experiment, this time, we have finally succeeded in realizing a novel method for producing a soil amendment material using livestock excreta having a new structure. Hereinafter, the present invention shown in the drawings is representative. You With examples, it is assumed that detailing its construction.

(Structure of the invention)
The manufacturing method of the fertilizer or soil improvement material of this invention makes the summary the following structures fundamentally.
That is, a method for producing a fertilizer or soil conditioner characterized by being produced by the following first to fourth steps,
[First step] Organic fiber materials such as composted sawdust and organic materials in fermentation process such as primary livestock excrement etc. are spread almost flat on an indoor concrete floor to a thickness of about 40 to 50 cm, From the above, livestock excrement of livestock as a weight ratio of chicken dung ash 1 that was incinerated at 400 ° C. or higher and completely incinerated, raw pig dung with a high water content, and raw cow dung 2 was about 0.015 cubic m / square. m
Agitating at a low speed of about 70 m / h while rotating the rotary claw at a rotational speed of about 85 times / minute while spraying and supplying substantially uniformly at a rate of about 1 time / day, about A process of producing primary treatment excrement having a moisture content of about 25 to 28% by forced fermentation by repeating over 30 days.
[Second step]
One of the three elements of plant fertilizer is added to the primary treatment excrement after the completion of the first step, which is spread almost flat on the indoor concrete floor, and then the raw feces containing chicken dung ash. The step of making the secondary treatment excrement formed into a semi-granular form by continuing the agitation once per day for about 10 days without further supply.
[Third step]
These semi-granulated secondary treatment excreta are piled up in a covered sedimentation area, left to stand in a naturally ventilated environment, matured and fermented, and once turned to a stage where the fermentation heat does not exceed 70 °. The process of carrying out and forcibly releasing the contained water with the heat of fermentation during that time.
[Fourth step]
Hereinafter, similarly, the process of carrying out one turnover at a stage where the heat of fermentation does not exceed 70 °, and gradually forcibly releasing the contained water by self-heating during that time until the water content finally becomes 20% or less. A process of obtaining a tertiary treatment excrement in a state where fermentation is completely fermented and matured, and fermentation is forcibly stopped temporarily by repeating as many times as necessary over a period of about 8 to 9 months.
It consists of the process .

The manufacturing method of the fertilizer or soil improvement material of this invention which consists of this basic composition also includes a manufacturing method from the following steps.
[First step]
Spread organic fiber materials such as composted sawdust and organic materials in the fermentation process such as primary processed livestock excrement on the indoor concrete floor to a thickness of about 40-50cm, and 400 ℃ Live excrement of livestock as a weight ratio of chicken dung ash 1 that has been incinerated and completely incinerated, raw pig dung with a high water content, and raw cow dung 2 is approximately 0.015 cubic m / square m.
Agitating at a low speed of about 70 m / h while rotating the rotary claw at a rotational speed of about 85 times / minute while spraying and supplying substantially uniformly at a rate of about 1 time / day, about A process of producing primary treatment excrement having a moisture content of about 25 to 28% by forced fermentation by repeating over 30 days.

[Second step]
One of the three elements of plant fertilizer is added to the primary treatment excrement after the completion of the first step, which is spread almost flat on the indoor concrete floor, and then the raw feces containing chicken dung ash. The step of making the secondary treatment excrement formed into a semi-granular form by continuing the agitation once per day for about 10 days without further supply.

[Third step]
These semi-granulated secondary treatment excreta are piled up in a covered sedimentation area, left to stand in a naturally ventilated environment, matured and fermented, and once turned to a stage where the fermentation heat does not exceed 70 °. The process of carrying out and forcibly releasing the contained water with the heat of fermentation during that time.

[Fourth step]
Hereinafter, similarly, the process of carrying out one turnover at a stage where the heat of fermentation does not exceed 70 °, and gradually forcibly releasing the contained water by self-heating during that time until the water content finally becomes 20% or less. A process of obtaining a tertiary treatment excrement in a state where fermentation is completely fermented and matured, and fermentation is forcibly stopped temporarily by repeating as many times as necessary over a period of about 8 to 9 months.

[Fifth step]
A step in which the tertiary treatment excrement obtained in the above step is sieved to a particle size in the range of 3 to 10 mm, preferably about 5 mm, and filled and sealed in a quantitative bag provided with a vent.
The above is a method for producing a fertilizer or soil improver produced by the first to fifth steps.

As described above, the method for producing a fertilizer or soil improver according to the present invention does not handle livestock excreta, particularly manure such as pigs and cows, which have a large amount of moisture and are difficult to handle, as it is, and is 400 ° C. or higher. Incinerated with ash, completely ashed, mixed with 1% by weight of chicken manure ash to 2% by weight of raw pig feces and raw cattle manure with a high water content to improve and handle the handling workability Since it can be manufactured through a process of being directly applied to the primary treatment excrement after being made into raw feces, the treatment efficiency of livestock manure is greatly improved compared to the previously developed one. This means that manure from surrounding livestock farmers can be transported and concentrated to efficiently handle manure every day, enabling manure treatment without any inconvenience to nearby residents. A house that has been a challenge since before It has a large feature that the pollution problems caused by excreta can be resolved at a stroke.

    In addition, the manufacturing process is as follows. First, the chicken manure ash 1 incinerated at 400 ° C. or higher and completely incinerated, the raw swine manure with a high water content, and the raw manure urine with the weight ratio of the raw cattle manure 2 are dispersed and stirred. Since the process is solid, both the second process, which mixes the three elements of plant fertilizer, can be carried out mechanized in a building with a concrete floor, so the processing work can be carried out efficiently by a very small number of workers. In addition, there is no risk of stinking odors in the process, and as a result of forced fermentation, the odor itself disappears in the early stage, and after a very short period of about one month, rainwater can be prevented. Even if piled up in a covered sedimentation area, it does not cause any offensive odor problems, and it is left to stand in a natural ventilation environment and mechanically repeats switching by temperature control, and matures based on the moisture content. Degree of fermentation It is a simple and efficient production method that enables the production of high-quality fertilizers or soil amendments as long as a predetermined period of time elapses while confirming, while greatly useful for manure treatment as described above In addition, it is possible to produce a high-quality fertilizer or soil amendment material that is inexpensive from extremely useful materials such as livestock excrement and enhanced effectiveness by mixed chicken dung ash in a relatively short period of time. For farmers, the double economic effect will be brought about, and the excellent effect will be obtained that will greatly help to stabilize farm management.

    On the other hand, the fertilizer or soil improvement material of the present invention thus obtained is directly fermented and matured from an extremely effective organic material called livestock excrement, and its effectiveness is enhanced by the mixed chicken manure ash, which is an extremely fertilizer component In addition, one of the three elements of plant fertilizer is appropriately selected according to the purpose, and it is possible to produce a large amount and stably, and compared with conventional organic fertilizer and soil improver. However, since it can be supplied at a relatively low price, it is necessary to recover the decline in geopower caused by excessive use of chemical fertilizer and to efficiently produce high-quality, pesticide-free agricultural products to counter liberalized agricultural products. For various producers, it can be easily accepted and used as extremely useful and safe. As a result, the positive effect of bringing in useful microorganisms, hydrogen sulfide The effects of preventing the generation of harmful underground gases, the effect of preventing the fixation of phosphoric acid, the fixation of nitrogen, the effect of bacterial growth, etc. are brought about, and the soil improvement progresses smoothly, and excellent fertilizer effects for plant growth are greatly expected. It will be possible to improve the motivation of producers.

    Furthermore, this fertilizer or soil conditioner is almost odorless, is formed into a granular material in an affordable dry state temporarily suspended, and is packed in bags every predetermined amount for easy handling. Since it can be provided as a product, it will be very convenient for handling in terms of storage, management, etc., as well as spraying work on agricultural land, and it will be a liberalization of imports of agricultural products. Even in the face of a tough situation, it is guaranteed to produce high-quality crops that are sufficiently competitive, and has the excellent effect of helping to stabilize farm management.

    Firstly, waste from primary treatment is generally flattened to about 40 to 50 cm thick on organic concrete floors such as sawdust, cannabis, and bark pieces, as well as straw, pasture, and rice bran on an indoor concrete floor. It spreads over and spreads manure and fermenting accelerators as appropriate to promote fermentation. After preparing a fermentation bed of a predetermined depth composted to a considerable extent, it is incinerated at 400 ° C or higher. The water is adjusted by adding 1% by weight of chicken dung ash to 2% by weight of raw pig dung and raw cow dung, which are completely ashed and contain a large amount of water. By repeating the stirring once / day for about 30 days while spraying and supplying to the liquid, forced fermentation will cause the water to evaporate to a considerable extent during the fermentation process, resulting in a moisture content of about 25 to 28%. Strange Refers to those properties became Jo material. Therefore, after the manufacturing process of the fertilizer or soil improvement material according to the present invention has started to operate, it is not necessary to make a fermentation bed from organic materials such as sawdust and cannabis, and a part of what became this primary treatment excrement, By passing only a predetermined amount to the next secondary treatment excrement and making the rest as a fermentation bed, O kept omitting the creation of a fermentation bed using scraps, kannakuz, etc. Fertilizers or soil amendments can also be obtained.

    The secondary treatment waste is the tertiary treatment waste, that is, the property of the previous stage for making the fertilizer or soil amendment material of the present invention. It is not necessarily limited to a certain amount, and only the predetermined amount is targeted, and the remainder is left as a fermentation bed, and only raw stool is supplied again.) By adding one of the three elements of plant fertilizer, ie, nitrogen, phosphoric acid and potash, and continuing stirring only once / day for about 10 days without supplying raw feces, granulation of non-uniform material They will be transferred to the roofed sedimentation area from the previous indoors for tertiary treatment waste.

    The tertiary treatment excrement is a fertilizer or soil conditioner according to the present invention that has been completely fermented and matured, and has become a granular material that is considerably averaged at a moisture content of 20% or less in which fermentation is temporarily stopped. Naturally ventilated by depositing the waste from the secondary treatment in a state where the size and shape vary and are not necessarily averaged, and also contain a large amount of nodules in a covered sedimentation area where rainwater can be prevented. Aging fermentation is carried out while left in the environment, and the heat of fermentation reaches 70 ° C., killing effective microorganisms, inhibiting the effective microbial decomposition action, and the cellulose decomposition period does not pass properly. Aiming at the previous stage (depending on the time of day, the same period or the weather, but the interval of about 10 to 15 days), at the timing, one turnover is performed for 8 to 9 months (the water content is almost omitted) 20 In the following, it is desirable to reach about 16% and to repeat over a period of time until the fermentation is temporarily stopped), during which the contained moisture is forcibly released with its own fermentation heat, and a large particle size. Is naturally disintegrated to obtain an averaged particle size as much as possible.

    This tertiary treatment excrement can of course be provided as it is as a fertilizer or soil conditioner of the present invention, but for convenience of handling or commercialization, the particle size is averaged by sieving once. If the product is smaller than the specified particle size, it can be used for making fermented floors of organic materials such as sawdust and cannabis, and in livestock waste and primary waste. Will be mixed and used.

In addition, the livestock excrement of the present invention does not particularly specify the type of livestock, but is cow dung, pig dung, and the like, and the raw dung immediately after being collected from the barn remains as it is. In the case where the raw dung is a pig dung, for example, a mixture of chicken dung ash 1 with respect to the pig dung 2 and, as a result, adjusted to a state in which moisture is adjusted is used. . However, it goes without saying that the mixing ratio must be adjusted as appropriate when the water content differs depending on the season or the like even in the same type or the same type of raw feces.

    The chicken dung ash that will be combined and mixed in that case is left in the poultry house after the chickens are shipped, and the chicken dung accumulated in the house is peeled off from the floor using a dedicated rake or other equipment. Stir well and leave it for 2 to 5 days to dry somewhat (at this stage, the water content is about 40%), then collect the chicken manure in the processing warehouse, for example for heating a chicken house For example, if the chicken manure is 1.5 tons, it can be obtained by incineration at a temperature of 400 ° C. or higher for 20 hours, and mixed with livestock manure. In order to be advantageous for the work, it is convenient to be able to handle every predetermined amount as a commercially available transpack.

In order to help understanding of the present invention having the above-described configuration, a specific method for producing a fertilizer or a soil amendment will be described next. First, in the first step, for example, the distribution and supply of raw pig dung with chicken dung ash added at a predetermined ratio, such as the ratio of chicken dung 1 raw pig dung 2, etc. has been developed by the previous applicant / inventor of the present application. Unlike the case of the livestock excrement of livestock that does not add any chicken dung ash, especially raw pig dung and raw cow dung, etc., which have a high water content and are difficult to process, are moisture-adjusted by chicken dung ash and contained as a whole Even if there is no change in the amount of water (thus, there will be no hindrance to forced fermentation in this process), the handling workability will be greatly improved, the efficiency of the work process will be improved, and the environmental hygiene such as the workplace will be improved. It will lead to.

In this spraying and supplying process, organic fiber materials such as sawdust, etc. that have been spread almost flatly on an indoor concrete floor to a thickness of about 40 to 50 cm and composted, and organic materials that are in the fermentation process such as primary livestock excrement etc. From the top, it is carried out at a rate of around 0.015 cubic rice per square meter each time (a lot more than raw pig dung with a high water content, raw cow dung alone), and at the same time While rotating the rotary claw at about 85 times / minute (more than in the case of raw pig dung and raw cow dung alone), the speed is about 70 m / h or slightly slower than that. The standard method is to repeat the agitation performed once per day for approximately 30 days, the amount of application of livestock feces per unit area, the number and speed of rotation of the rotary claws, and Relative Depending on the type of live feces, that is, the type of livestock, the amount of water, the temperature difference due to the difference in time, etc. The fermentation is managed so that it progresses ideally, and the moisture content [moisture / (solid + moisture)] reaches about 25 to 28%, preferably about 26%, and almost no odor is emitted. Therefore, it should be possible to efficiently produce primary treatment waste by using as a guideline for judging the degree of fermentation.

    In the second step, the primary treatment excrement after the completion of the first step is left as it is spread almost flat on the indoor concrete floor, and the plant fertilizer three elements, that is, nitrogen, phosphoric acid, potassium, are proportioned to the target crop. In addition to adding at least one of the above, the live feces are not fed at all, and the mixture is further granulated, that is, the size of the grains, by continuing the stirring once per day for about 10 days. In addition to the irregular shape, secondary treatment excreta formed into a slightly softer mud form, including those in the form of nodules. In addition, even when the secondary treatment excrement is formed without adding the three elements of plant fertilizer, stirring for about 10 days once / day without supplying raw feces is performed before moving to the next third step. Necessary as a processing step.

    The secondary treatment excrement obtained in the second step is subsequently transferred from the indoors to the covered deposition site using a power shovel or other machinery as the third step. Stacked piles, aged and fermented while left in a naturally ventilated environment, with one turnover at a stage where the fermentation heat does not exceed 70 ° (differs due to differences in temperature, air volume, etc. even at the same time or at the same time). It is carried out, and the contained water is forcibly released by the heat of fermentation during that time. If the timing of this turnover is incorrect, if too early, it takes too much time for aging fermentation, making it impossible to produce efficiently, and if it is too late, effective microorganisms are killed, and aging fermentation does not progress even after many hours, Since it will rot, it is necessary to neglect temperature control.

In the same manner, the process of performing turnover once in a stage where the heat of fermentation does not exceed 70 °, and the process of gradually forcibly releasing the contained water by self-heating during that time, until the moisture content finally becomes 20% or less. In contrast to the previously developed raw pig dung and raw cow dung, which are rich in water content, by impregnating a predetermined proportion of chicken dung ash, the amount of water lost becomes 3 to 6 months longer. Completely fermented and matured by the fourth step, which is repeated as many times as necessary over a period of about 8 to 9 months (subject to differences in time and temperature, air volume, etc., even at the same time). After that, the fermentation is temporarily stopped due to a decrease in moisture, and the particulate tertiary treatment excrement that is homogenized as a whole, that is, the fertilizer or soil improvement material of the present invention is completed.

Thereafter, if necessary, the tertiary treatment excrement obtained as described above is sieved, and the particle size is about 3 to 10 mm, preferably about 5 mm, and is easy to handle as a fertilizer or soil conditioner. In addition, in order to make it easy to handle as a product , a quantitative process is added by adding a fifth step in which a quantitative bag such as 10 kg, 15 kg,... It is also possible to produce fertilizers or soil amendments packed in bags.

(Conclusion)
As described above, the method for producing a fertilizer or soil amendment according to the present invention has been used in the past for handling livestock excreta, particularly raw pig dung and raw cow dung, which have a high water content and are difficult to process. It has been improved to a large extent compared to the ones, and has succeeded in making an extremely high-quality organic fertilizer or soil conditioner with enhanced phosphoric acid, especially the effectiveness of chicken manure ash that contributes to the improvement. Therefore, it has been highly evaluated as a measure against manure pollution, and it has been greatly accepted as a means to increase the production efficiency of various cultivated crops by producers. Of course, it will be spread and expanded, and it can be used to make soil for gardening other than farmers, for processing garbage from the kitchen, and for golf course turf Healthy Education, believed to also help in the management, is expected to be intended to exert much its power in various fields.

The drawing shows a typical embodiment of the method for producing a fertilizer or soil amendment according to the present invention.
The manufacturing process is shown as a flowchart.

Claims (2)

The manufacturing method of the fertilizer or soil improvement material characterized by manufacturing by the following 1st thru | or 4 processes.
[First step] Spread organic fiber materials such as composted sawdust and organic materials in the fermentation process such as primary processed livestock excrement on the indoor concrete floor to a thickness of about 40-50cm, and 400 ℃ Live excrement of livestock as a weight ratio of chicken dung ash 1 that has been incinerated and completely incinerated, raw pig dung with a high water content, and raw cow dung 2 is approximately 0.015 cubic m / square m.
Agitating at a low speed of about 70 m / h while rotating the rotary claw at a rotational speed of about 85 times / minute while spraying and supplying substantially uniformly at a rate of about 1 time / day, about A process of producing primary treatment excrement having a moisture content of about 25 to 28% by forced fermentation by repeating over 30 days.
[Second step]
One of the three elements of plant fertilizer is added to the primary treatment excrement after the completion of the first step, which is spread almost flat on the indoor concrete floor, and then the raw feces containing chicken dung ash. The step of making the secondary treatment excrement formed into a semi-granular form by continuing the agitation once per day for about 10 days without further supply.
[Third step]
These semi-granulated secondary treatment excreta are piled up in a covered sedimentation area, left to stand in a naturally ventilated environment, matured and fermented, and once turned to a stage where the fermentation heat does not exceed 70 °. The process of carrying out and forcibly releasing the contained water with the heat of fermentation during that time.
[Fourth step]
Hereinafter, similarly, the process of carrying out one turnover at a stage where the heat of fermentation does not exceed 70 °, and gradually forcibly releasing the contained water by self-heating during that time until the water content finally becomes 20% or less. A process of obtaining a tertiary treatment excrement in a state where fermentation is completely fermented and matured, and fermentation is forcibly stopped temporarily by repeating as many times as necessary over a period of about 8 to 9 months. The manufacturing method of the fertilizer or soil improvement material characterized by manufacturing by the following 1st thru | or 5 processes.
[First step]
Spread organic fiber materials such as composted sawdust and organic materials in the fermentation process such as primary processed livestock excrement on the indoor concrete floor to a thickness of about 40-50cm, and 400 ℃ Live excrement of livestock as a weight ratio of chicken dung ash 1 that has been incinerated and completely incinerated, raw pig dung with a high water content, and raw cow dung 2 is approximately 0.015 cubic m / square m.
Agitating at a low speed of about 70 m / h while rotating the rotary claw at a rotational speed of about 85 times / minute while spraying and supplying substantially uniformly at a rate of about 1 time / day, about A process of producing primary treatment excrement having a moisture content of about 25 to 28% by forced fermentation by repeating over 30 days.
[Second step]
One of the three elements of plant fertilizer is added to the primary treatment excrement after the completion of the first step, which is spread almost flat on the indoor concrete floor, and then the raw feces containing chicken dung ash. The step of making the secondary treatment excrement formed into a semi-granular form by continuing the agitation once per day for about 10 days without further supply.
[Third step]
These semi-granulated secondary treatment excreta are piled up in a covered sedimentation area, left to stand in a naturally ventilated environment, matured and fermented, and once turned to a stage where the fermentation heat does not exceed 70 °. The process of carrying out and forcibly releasing the contained water with the heat of fermentation during that time.
[Fourth step]
Hereinafter, similarly, the process of carrying out one turnover at a stage where the heat of fermentation does not exceed 70 °, and gradually forcibly releasing the contained water by self-heating during that time until the water content finally becomes 20% or less. A process of obtaining a tertiary treatment excrement in a state where fermentation is completely fermented and matured, and fermentation is forcibly stopped temporarily by repeating as many times as necessary over a period of about 8 to 9 months.
[Fifth step]
A step in which the tertiary treatment excrement obtained in the above step is sieved to a particle size in the range of 3 to 10 mm, preferably about 5 mm, and filled and sealed in a quantitative bag provided with a vent.

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